Fatso was a spoof of the official Olympic mascots Syd, Ollie and Millie, whom Roy & HG disparaged as "Ollie, Millie and Dickhead".[3] He was nicknamed "the battlers' prince" and proved to be more popular among Australian fans (and some visitors who viewed the program) than the official mascots.[4] Fatso appeared with Gold Medalists Susie O'Neill, Grant Hackett and the Australian men's 4×200 metre relay team on the winners' dais.[1][2] He consequently appears on an official commemorative postage stamp of the Australian men's 4×200 metre relay team in the arms of Michael Klim.[5] During the Olympics, the Australian Olympic Committee attempted to ban athletes appearing with Fatso to stop him upstaging their official mascots.[2] The ensuing public relations disaster forced the president of the AOC, John Coates, and the director general of the IOC, Francois Carrard, to distance their organisations from these attempts.[1][6]

In keeping with Fatso's role as a protest against the commercialization of Olympic mascots,[3] only two Fatsos were officially produced: one for use in the studio and the other for use in the athletes' village.[1] At the end of the Olympics, one of the Fatsos was auctioned for the Olympic Aid charity, selling for A$80,450 to Seven Network executive chairman Kerry Stokes. Fatso is currently housed in a glass box in Kerry Stokes's North Sydney office.[6] A number of unofficial Fatso toys and memorabilia were sold by merchants without authorization from the producers of The Dream.[7][8] A statue of Fatso appears as part of an official Olympic memorial outside the Sydney Olympic Stadium, commemorating the volunteers who worked during the Olympics.[6] The Fatso statue was vandalised in late September 2010, then stolen sometime before 8 October 2010.[9]